Incidence of peptic ulcer complications, their relation to climate and age.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001274:Atmospheric Pressure; D002980:Climate; D004381:Duodenal Ulcer / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010438:Peptic Ulcer Hemorrhage / Q000453:epidemiology / Q000209:etiology*; D010439:Peptic Ulcer Perforation / Q000209:etiology*; D013223:Statistics as Topic; D013696:Temperature; D014887:Weather